Tennakone, K.Weerasooriya, S.V.R.Jayatissa, D.L.Damayanthi, M.L.W.D.Silva, L.H.K.2015-06-032015-06-031988Fertilizer Research, 16:p.87-96https://dl-ifs.nsf.gov.lk/handle/1/323ChemistryNon hygroscopic superphosphate fertilizer from apatite and hydrochloric acidArticle